<script lang="ts">
	import { toast } from 'svelte-sonner';
	import { onMount, tick, getContext } from 'svelte';
	import { type Model, mobile, settings, showSidebar, models, config } from '$lib/stores';
	import { blobToFile, calculateSHA256, findWordIndices } from '$lib/utils';

	import {
		uploadDocToVectorDB,
		uploadWebToVectorDB,
		uploadYoutubeTranscriptionToVectorDB
	} from '$lib/apis/rag';
	import { SUPPORTED_FILE_TYPE, SUPPORTED_FILE_EXTENSIONS, WEBUI_BASE_URL } from '$lib/constants';

	import { transcribeAudio } from '$lib/apis/audio';

	import Prompts from './MessageInput/PromptCommands.svelte';
	import Suggestions from './MessageInput/Suggestions.svelte';
	import AddFilesPlaceholder from '../AddFilesPlaceholder.svelte';
	import Documents from './MessageInput/Documents.svelte';
	import Models from './MessageInput/Models.svelte';
	import Tooltip from '../common/Tooltip.svelte';
	import XMark from '$lib/components/icons/XMark.svelte';
	import InputMenu from './MessageInput/InputMenu.svelte';
	import { t } from 'i18next';

	const i18n = getContext('i18n');

	export let submitPrompt: Function;
	export let stopResponse: Function;

	export let autoScroll = true;

	export let atSelectedModel: Model | undefined;
	export let selectedModels: [''];

	let chatTextAreaElement: HTMLTextAreaElement;
	let filesInputElement;

	let promptsElement;
	let documentsElement;
	let modelsElement;

	let inputFiles;
	let dragged = false;

	let user = null;
	let chatInputPlaceholder = '';

	export let files = [];

	export let speechRecognitionEnabled = true;
	export let webSearchEnabled = false;

	export let prompt = '';
	export let messages = [];

	let speechRecognition;

	let visionCapableModels = [];
	$: visionCapableModels = [...(atSelectedModel ? [atSelectedModel] : selectedModels)].filter(
		(model) => $models.find((m) => m.id === model)?.info?.meta?.capabilities?.vision ?? true
	);

	$: if (prompt) {
		if (chatTextAreaElement) {
			chatTextAreaElement.style.height = '';
			chatTextAreaElement.style.height = Math.min(chatTextAreaElement.scrollHeight, 200) + 'px';
		}
	}

	let mediaRecorder;
	let audioChunks = [];
	let isRecording = false;
	const MIN_DECIBELS = -45;

	const scrollToBottom = () => {
		const element = document.getElementById('messages-container');
		element.scrollTop = element.scrollHeight;
	};

	const startRecording = async () => {
		const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
		mediaRecorder = new MediaRecorder(stream);
		mediaRecorder.onstart = () => {
			isRecording = true;
			console.log('Recording started');
		};
		mediaRecorder.ondataavailable = (event) => audioChunks.push(event.data);
		mediaRecorder.onstop = async () => {
			isRecording = false;
			console.log('Recording stopped');

			// Create a blob from the audio chunks
			const audioBlob = new Blob(audioChunks, { type: 'audio/wav' });

			const file = blobToFile(audioBlob, 'recording.wav');

			const res = await transcribeAudio(localStorage.token, file).catch((error) => {
				toast.error(error);
				return null;
			});

			if (res) {
				prompt = res.text;
				await tick();
				chatTextAreaElement?.focus();

				if (prompt !== '' && $settings?.speechAutoSend === true) {
					submitPrompt(prompt, user);
				}
			}

			// saveRecording(audioBlob);
			audioChunks = [];
		};

		// Start recording
		mediaRecorder.start();

		// Monitor silence
		monitorSilence(stream);
	};

	const monitorSilence = (stream) => {
		const audioContext = new AudioContext();
		const audioStreamSource = audioContext.createMediaStreamSource(stream);
		const analyser = audioContext.createAnalyser();
		analyser.minDecibels = MIN_DECIBELS;
		audioStreamSource.connect(analyser);

		const bufferLength = analyser.frequencyBinCount;
		const domainData = new Uint8Array(bufferLength);

		let lastSoundTime = Date.now();

		const detectSound = () => {
			analyser.getByteFrequencyData(domainData);

			if (domainData.some((value) => value > 0)) {
				lastSoundTime = Date.now();
			}

			if (isRecording && Date.now() - lastSoundTime > 3000) {
				mediaRecorder.stop();
				audioContext.close();
				return;
			}

			window.requestAnimationFrame(detectSound);
		};

		window.requestAnimationFrame(detectSound);
	};

	const saveRecording = (blob) => {
		const url = URL.createObjectURL(blob);
		const a = document.createElement('a');
		document.body.appendChild(a);
		a.style = 'display: none';
		a.href = url;
		a.download = 'recording.wav';
		a.click();
		window.URL.revokeObjectURL(url);
	};

	const speechRecognitionHandler = () => {
		// Check if SpeechRecognition is supported

		if (isRecording) {
			if (speechRecognition) {
				speechRecognition.stop();
			}

			if (mediaRecorder) {
				mediaRecorder.stop();
			}
		} else {
			isRecording = true;

			if ($settings?.audio?.STTEngine ?? '' !== '') {
				startRecording();
			} else {
				if ('SpeechRecognition' in window || 'webkitSpeechRecognition' in window) {
					// Create a SpeechRecognition object
					speechRecognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();

					// Set continuous to true for continuous recognition
					speechRecognition.continuous = true;

					// Set the timeout for turning off the recognition after inactivity (in milliseconds)
					const inactivityTimeout = 3000; // 3 seconds

					let timeoutId;
					// Start recognition
					speechRecognition.start();

					// Event triggered when speech is recognized
					speechRecognition.onresult = async (event) => {
						// Clear the inactivity timeout
						clearTimeout(timeoutId);

						// Handle recognized speech
						console.log(event);
						const transcript = event.results[Object.keys(event.results).length - 1][0].transcript;

						prompt = `${prompt}${transcript}`;

						await tick();
						chatTextAreaElement?.focus();

						// Restart the inactivity timeout
						timeoutId = setTimeout(() => {
							console.log('Speech recognition turned off due to inactivity.');
							speechRecognition.stop();
						}, inactivityTimeout);
					};

					// Event triggered when recognition is ended
					speechRecognition.onend = function () {
						// Restart recognition after it ends
						console.log('recognition ended');
						isRecording = false;
						if (prompt !== '' && $settings?.speechAutoSend === true) {
							submitPrompt(prompt, user);
						}
					};

					// Event triggered when an error occurs
					speechRecognition.onerror = function (event) {
						console.log(event);
						toast.error($i18n.t(`Speech recognition error: {{error}}`, { error: event.error }));
						isRecording = false;
					};
				} else {
					toast.error($i18n.t('SpeechRecognition API is not supported in this browser.'));
				}
			}
		}
	};

	const uploadDoc = async (file) => {
		console.log(file);

		const doc = {
			type: 'doc',
			name: file.name,
			collection_name: '',
			upload_status: false,
			error: ''
		};

		try {
			files = [...files, doc];

			if (['audio/mpeg', 'audio/wav'].includes(file['type'])) {
				const res = await transcribeAudio(localStorage.token, file).catch((error) => {
					toast.error(error);
					return null;
				});

				if (res) {
					console.log(res);
					const blob = new Blob([res.text], { type: 'text/plain' });
					file = blobToFile(blob, `${file.name}.txt`);
				}
			}

			const res = await uploadDocToVectorDB(localStorage.token, '', file);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== file.name);
			toast.error(e);
		}
	};

	const uploadWeb = async (url) => {
		console.log(url);

		const doc = {
			type: 'doc',
			name: url,
			collection_name: '',
			upload_status: false,
			url: url,
			error: ''
		};

		try {
			files = [...files, doc];
			const res = await uploadWebToVectorDB(localStorage.token, '', url);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== url);
			toast.error(e);
		}
	};

	const uploadYoutubeTranscription = async (url) => {
		console.log(url);

		const doc = {
			type: 'doc',
			name: url,
			collection_name: '',
			upload_status: false,
			url: url,
			error: ''
		};

		try {
			files = [...files, doc];
			const res = await uploadYoutubeTranscriptionToVectorDB(localStorage.token, url);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== url);
			toast.error(e);
		}
	};

	onMount(() => {
		window.setTimeout(() => chatTextAreaElement?.focus(), 0);

		const dropZone = document.querySelector('body');

		const handleKeyDown = (event: KeyboardEvent) => {
			if (event.key === 'Escape') {
				console.log('Escape');
				dragged = false;
			}
		};

		const onDragOver = (e) => {
			e.preventDefault();
			dragged = true;
		};

		const onDragLeave = () => {
			dragged = false;
		};

		const onDrop = async (e) => {
			e.preventDefault();
			console.log(e);

			if (e.dataTransfer?.files) {
				const inputFiles = Array.from(e.dataTransfer?.files);

				if (inputFiles && inputFiles.length > 0) {
					inputFiles.forEach((file) => {
						console.log(file, file.name.split('.').at(-1));
						if (['image/gif', 'image/webp', 'image/jpeg', 'image/png'].includes(file['type'])) {
							if (visionCapableModels.length === 0) {
								toast.error($i18n.t('Selected model(s) do not support image inputs'));
								return;
							}
							let reader = new FileReader();
							reader.onload = (event) => {
								files = [
									...files,
									{
										type: 'image',
										url: `${event.target.result}`
									}
								];
							};
							reader.readAsDataURL(file);
						} else if (
							SUPPORTED_FILE_TYPE.includes(file['type']) ||
							SUPPORTED_FILE_EXTENSIONS.includes(file.name.split('.').at(-1))
						) {
							uploadDoc(file);
						} else {
							toast.error(
								$i18n.t(
									`Unknown File Type '{{file_type}}', but accepting and treating as plain text`,
									{ file_type: file['type'] }
								)
							);
							uploadDoc(file);
						}
					});
				} else {
					toast.error($i18n.t(`File not found.`));
				}
			}

			dragged = false;
		};

		window.addEventListener('keydown', handleKeyDown);

		dropZone?.addEventListener('dragover', onDragOver);
		dropZone?.addEventListener('drop', onDrop);
		dropZone?.addEventListener('dragleave', onDragLeave);

		return () => {
			window.removeEventListener('keydown', handleKeyDown);

			dropZone?.removeEventListener('dragover', onDragOver);
			dropZone?.removeEventListener('drop', onDrop);
			dropZone?.removeEventListener('dragleave', onDragLeave);
		};
	});
</script>

{#if dragged}
	<div
		class="fixed {$showSidebar
			? 'left-0 md:left-[260px] md:w-[calc(100%-260px)]'
			: 'left-0'}  w-full h-full flex z-50 touch-none pointer-events-none"
		id="dropzone"
		role="region"
		aria-label="Drag and Drop Container"
	>
		<div class="absolute w-full h-full backdrop-blur bg-gray-800/40 flex justify-center">
			<div class="m-auto pt-64 flex flex-col justify-center">
				<div class="max-w-md">
					<AddFilesPlaceholder />
				</div>
			</div>
		</div>
	</div>
{/if}

<div class="w-full">
	<div class=" -mb-0.5 mx-auto inset-x-0 bg-transparent flex justify-center">
		<div class="flex flex-col max-w-6xl px-2.5 md:px-6 w-full">
			<div class="relative">
				{#if autoScroll === false && messages.length > 0}
					<div class=" absolute -top-12 left-0 right-0 flex justify-center z-30">
						<button
							class=" bg-white border border-gray-100 dark:border-none dark:bg-white/20 p-1.5 rounded-full"
							on:click={() => {
								autoScroll = true;
								scrollToBottom();
							}}
						>
							<svg
								xmlns="http://www.w3.org/2000/svg"
								viewBox="0 0 20 20"
								fill="currentColor"
								class="w-5 h-5"
							>
								<path
									fill-rule="evenodd"
									d="M10 3a.75.75 0 01.75.75v10.638l3.96-4.158a.75.75 0 111.08 1.04l-5.25 5.5a.75.75 0 01-1.08 0l-5.25-5.5a.75.75 0 111.08-1.04l3.96 4.158V3.75A.75.75 0 0110 3z"
									clip-rule="evenodd"
								/>
							</svg>
						</button>
					</div>
				{/if}
			</div>

			<div class="w-full relative">
				{#if prompt.charAt(0) === '/'}
					<Prompts bind:this={promptsElement} bind:prompt />
				{:else if prompt.charAt(0) === '#'}
					<Documents
						bind:this={documentsElement}
						bind:prompt
						on:youtube={(e) => {
							console.log(e);
							uploadYoutubeTranscription(e.detail);
						}}
						on:url={(e) => {
							console.log(e);
							uploadWeb(e.detail);
						}}
						on:select={(e) => {
							console.log(e);
							files = [
								...files,
								{
									type: e?.detail?.type ?? 'doc',
									...e.detail,
									upload_status: true
								}
							];
						}}
					/>
				{/if}

				<Models
					bind:this={modelsElement}
					bind:prompt
					bind:user
					bind:chatInputPlaceholder
					{messages}
					on:select={(e) => {
						atSelectedModel = e.detail;
						chatTextAreaElement?.focus();
					}}
				/>

				{#if atSelectedModel !== undefined}
					<div
						class="px-3 py-2.5 text-left w-full flex justify-between items-center absolute bottom-0 left-0 right-0 bg-gradient-to-t from-50% from-white dark:from-gray-900"
					>
						<div class="flex items-center gap-2 text-sm dark:text-gray-500">
							<img
								crossorigin="anonymous"
								alt="model profile"
								class="size-5 max-w-[28px] object-cover rounded-full"
								src={$models.find((model) => model.id === atSelectedModel.id)?.info?.meta
									?.profile_image_url ??
									($i18n.language === 'dg-DG'
										? `/doge.png`
										: `${WEBUI_BASE_URL}/static/favicon.png`)}
							/>
							<div>
								Talking to <span class=" font-medium">{atSelectedModel.name}</span>
							</div>
						</div>
						<div>
							<button
								class="flex items-center"
								on:click={() => {
									atSelectedModel = undefined;
								}}
							>
								<XMark />
							</button>
						</div>
					</div>
				{/if}
			</div>
		</div>
	</div>

	<div class="bg-white dark:bg-gray-900">
		<div class="max-w-6xl px-2.5 md:px-6 mx-auto inset-x-0">
			<div class=" pb-2">
				<input
					bind:this={filesInputElement}
					bind:files={inputFiles}
					type="file"
					hidden
					multiple
					on:change={async () => {
						if (inputFiles && inputFiles.length > 0) {
							const _inputFiles = Array.from(inputFiles);
							_inputFiles.forEach((file) => {
								if (['image/gif', 'image/webp', 'image/jpeg', 'image/png'].includes(file['type'])) {
									if (visionCapableModels.length === 0) {
										toast.error($i18n.t('Selected model(s) do not support image inputs'));
										inputFiles = null;
										filesInputElement.value = '';
										return;
									}
									let reader = new FileReader();
									reader.onload = (event) => {
										files = [
											...files,
											{
												type: 'image',
												url: `${event.target.result}`
											}
										];
										inputFiles = null;
										filesInputElement.value = '';
									};
									reader.readAsDataURL(file);
								} else if (
									SUPPORTED_FILE_TYPE.includes(file['type']) ||
									SUPPORTED_FILE_EXTENSIONS.includes(file.name.split('.').at(-1))
								) {
									uploadDoc(file);
									filesInputElement.value = '';
								} else {
									toast.error(
										$i18n.t(
											`Unknown File Type '{{file_type}}', but accepting and treating as plain text`,
											{ file_type: file['type'] }
										)
									);
									uploadDoc(file);
									filesInputElement.value = '';
								}
							});
						} else {
							toast.error($i18n.t(`File not found.`));
						}
					}}
				/>
				<form
					dir={$settings?.chatDirection ?? 'LTR'}
					class=" flex flex-col relative w-full rounded-3xl px-1.5 bg-gray-50 dark:bg-gray-850 dark:text-gray-100"
					on:submit|preventDefault={() => {
						// check if selectedModels support image input
						submitPrompt(prompt, user);
					}}
				>
					{#if files.length > 0}
						<div class="mx-2 mt-2 mb-1 flex flex-wrap gap-2">
							{#each files as file, fileIdx}
								<div class=" relative group">
									{#if file.type === 'image'}
										<div class="relative">
											<img src={file.url} alt="input" class=" h-16 w-16 rounded-xl object-cover" />
											{#if atSelectedModel ? visionCapableModels.length === 0 : selectedModels.length !== visionCapableModels.length}
												<Tooltip
													className=" absolute top-1 left-1"
													content={$i18n.t('{{ models }}', {
														models: [...(atSelectedModel ? [atSelectedModel] : selectedModels)]
															.filter((id) => !visionCapableModels.includes(id))
															.join(', ')
													})}
												>
													<svg
														xmlns="http://www.w3.org/2000/svg"
														viewBox="0 0 24 24"
														fill="currentColor"
														class="size-4 fill-yellow-300"
													>
														<path
															fill-rule="evenodd"
															d="M9.401 3.003c1.155-2 4.043-2 5.197 0l7.355 12.748c1.154 2-.29 4.5-2.599 4.5H4.645c-2.309 0-3.752-2.5-2.598-4.5L9.4 3.003ZM12 8.25a.75.75 0 0 1 .75.75v3.75a.75.75 0 0 1-1.5 0V9a.75.75 0 0 1 .75-.75Zm0 8.25a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Z"
															clip-rule="evenodd"
														/>
													</svg>
												</Tooltip>
											{/if}
										</div>
									{:else if file.type === 'doc'}
										<div
											class="h-16 w-[15rem] flex items-center space-x-3 px-2.5 dark:bg-gray-600 rounded-xl border border-gray-200 dark:border-none"
										>
											<div class="p-2.5 bg-red-400 text-white rounded-lg">
												{#if file.upload_status}
													<svg
														xmlns="http://www.w3.org/2000/svg"
														viewBox="0 0 24 24"
														fill="currentColor"
														class="w-6 h-6"
													>
														<path
															fill-rule="evenodd"
															d="M5.625 1.5c-1.036 0-1.875.84-1.875 1.875v17.25c0 1.035.84 1.875 1.875 1.875h12.75c1.035 0 1.875-.84 1.875-1.875V12.75A3.75 3.75 0 0 0 16.5 9h-1.875a1.875 1.875 0 0 1-1.875-1.875V5.25A3.75 3.75 0 0 0 9 1.5H5.625ZM7.5 15a.75.75 0 0 1 .75-.75h7.5a.75.75 0 0 1 0 1.5h-7.5A.75.75 0 0 1 7.5 15Zm.75 2.25a.75.75 0 0 0 0 1.5H12a.75.75 0 0 0 0-1.5H8.25Z"
															clip-rule="evenodd"
														/>
														<path
															d="M12.971 1.816A5.23 5.23 0 0 1 14.25 5.25v1.875c0 .207.168.375.375.375H16.5a5.23 5.23 0 0 1 3.434 1.279 9.768 9.768 0 0 0-6.963-6.963Z"
														/>
													</svg>
												{:else}
													<svg
														class=" w-6 h-6 translate-y-[0.5px]"
														fill="currentColor"
														viewBox="0 0 24 24"
														xmlns="http://www.w3.org/2000/svg"
														><style>
															.spinner_qM83 {
																animation: spinner_8HQG 1.05s infinite;
															}
															.spinner_oXPr {
																animation-delay: 0.1s;
															}
															.spinner_ZTLf {
																animation-delay: 0.2s;
															}
															@keyframes spinner_8HQG {
																0%,
																57.14% {
																	animation-timing-function: cubic-bezier(0.33, 0.66, 0.66, 1);
																	transform: translate(0);
																}
																28.57% {
																	animation-timing-function: cubic-bezier(0.33, 0, 0.66, 0.33);
																	transform: translateY(-6px);
																}
																100% {
																	transform: translate(0);
																}
															}
														</style><circle class="spinner_qM83" cx="4" cy="12" r="2.5" /><circle
															class="spinner_qM83 spinner_oXPr"
															cx="12"
															cy="12"
															r="2.5"
														/><circle
															class="spinner_qM83 spinner_ZTLf"
															cx="20"
															cy="12"
															r="2.5"
														/></svg
													>
												{/if}
											</div>

											<div class="flex flex-col justify-center -space-y-0.5">
												<div class=" dark:text-gray-100 text-sm font-medium line-clamp-1">
													{file.name}
												</div>

												<div class=" text-gray-500 text-sm">{$i18n.t('Document')}</div>
											</div>
										</div>
									{:else if file.type === 'collection'}
										<div
											class="h-16 w-[15rem] flex items-center space-x-3 px-2.5 dark:bg-gray-600 rounded-xl border border-gray-200 dark:border-none"
										>
											<div class="p-2.5 bg-red-400 text-white rounded-lg">
												<svg
													xmlns="http://www.w3.org/2000/svg"
													viewBox="0 0 24 24"
													fill="currentColor"
													class="w-6 h-6"
												>
													<path
														d="M7.5 3.375c0-1.036.84-1.875 1.875-1.875h.375a3.75 3.75 0 0 1 3.75 3.75v1.875C13.5 8.161 14.34 9 15.375 9h1.875A3.75 3.75 0 0 1 21 12.75v3.375C21 17.16 20.16 18 19.125 18h-9.75A1.875 1.875 0 0 1 7.5 16.125V3.375Z"
													/>
													<path
														d="M15 5.25a5.23 5.23 0 0 0-1.279-3.434 9.768 9.768 0 0 1 6.963 6.963A5.23 5.23 0 0 0 17.25 7.5h-1.875A.375.375 0 0 1 15 7.125V5.25ZM4.875 6H6v10.125A3.375 3.375 0 0 0 9.375 19.5H16.5v1.125c0 1.035-.84 1.875-1.875 1.875h-9.75A1.875 1.875 0 0 1 3 20.625V7.875C3 6.839 3.84 6 4.875 6Z"
													/>
												</svg>
											</div>

											<div class="flex flex-col justify-center -space-y-0.5">
												<div class=" dark:text-gray-100 text-sm font-medium line-clamp-1">
													{file?.title ?? `#${file.name}`}
												</div>

												<div class=" text-gray-500 text-sm">{$i18n.t('Collection')}</div>
											</div>
										</div>
									{/if}

									<div class=" absolute -top-1 -right-1">
										<button
											class=" bg-gray-400 text-white border border-white rounded-full group-hover:visible invisible transition"
											type="button"
											on:click={() => {
												files.splice(fileIdx, 1);
												files = files;
											}}
										>
											<svg
												xmlns="http://www.w3.org/2000/svg"
												viewBox="0 0 20 20"
												fill="currentColor"
												class="w-4 h-4"
											>
												<path
													d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z"
												/>
											</svg>
										</button>
									</div>
								</div>
							{/each}
						</div>
					{/if}

					<div class=" flex">
						<div class=" ml-1 self-end mb-2 flex space-x-1">
							<InputMenu
								bind:webSearchEnabled
								uploadFilesHandler={() => {
									filesInputElement.click();
								}}
								onClose={async () => {
									await tick();
									chatTextAreaElement?.focus();
								}}
							>
								<button
									class="bg-gray-50 hover:bg-gray-100 text-gray-800 dark:bg-gray-850 dark:text-white dark:hover:bg-gray-800 transition rounded-full p-1.5 outline-none focus:outline-none"
									type="button"
								>
									<svg
										xmlns="http://www.w3.org/2000/svg"
										viewBox="0 0 16 16"
										fill="currentColor"
										class="size-5"
									>
										<path
											d="M8.75 3.75a.75.75 0 0 0-1.5 0v3.5h-3.5a.75.75 0 0 0 0 1.5h3.5v3.5a.75.75 0 0 0 1.5 0v-3.5h3.5a.75.75 0 0 0 0-1.5h-3.5v-3.5Z"
										/>
									</svg>
								</button>
							</InputMenu>
						</div>

						<textarea
							id="chat-textarea"
							bind:this={chatTextAreaElement}
							class="scrollbar-hidden bg-gray-50 dark:bg-gray-850 dark:text-gray-100 outline-none w-full py-3 px-3 rounded-xl resize-none h-[48px]"
							placeholder={chatInputPlaceholder !== ''
								? chatInputPlaceholder
								: isRecording
								? $i18n.t('Listening...')
								: $i18n.t('Send a Message')}
							bind:value={prompt}
							on:keypress={(e) => {}}
							on:keydown={async (e) => {
								// Check if the device is not a mobile device or if it is a mobile device, check if it is not a touch device
								// This is to prevent the Enter key from submitting the prompt on mobile devices
								if (
									!$mobile ||
									!(
										'ontouchstart' in window ||
										navigator.maxTouchPoints > 0 ||
										navigator.msMaxTouchPoints > 0
									)
								) {
									// Check if Enter is pressed
									// Check if Shift key is not pressed
									if (e.key === 'Enter' && !e.shiftKey) {
										e.preventDefault();
									}

									const commandOptionButton = [
										...document.getElementsByClassName('selected-command-option-button')
									]?.at(-1);

									if (!commandOptionButton) {
										if (e.key === 'Enter' && !e.shiftKey && prompt !== '') {
											submitPrompt(prompt, user);
											return;
										}

										if (e.key === 'Enter' && e.shiftKey && prompt !== '') {
											return;
										}
									}
								}

								const isCtrlPressed = e.ctrlKey || e.metaKey; // metaKey is for Cmd key on Mac

								// Check if Ctrl + R is pressed
								if (prompt === '' && isCtrlPressed && e.key.toLowerCase() === 'r') {
									e.preventDefault();
									console.log('regenerate');

									const regenerateButton = [
										...document.getElementsByClassName('regenerate-response-button')
									]?.at(-1);

									regenerateButton?.click();
								}

								if (prompt === '' && e.key == 'ArrowUp') {
									e.preventDefault();

									const userMessageElement = [
										...document.getElementsByClassName('user-message')
									]?.at(-1);

									const editButton = [
										...document.getElementsByClassName('edit-user-message-button')
									]?.at(-1);

									console.log(userMessageElement);

									userMessageElement.scrollIntoView({ block: 'center' });
									editButton?.click();
								}

								if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'ArrowUp') {
									e.preventDefault();

									(promptsElement || documentsElement || modelsElement).selectUp();

									const commandOptionButton = [
										...document.getElementsByClassName('selected-command-option-button')
									]?.at(-1);
									commandOptionButton.scrollIntoView({ block: 'center' });
								}

								if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'ArrowDown') {
									e.preventDefault();

									(promptsElement || documentsElement || modelsElement).selectDown();

									const commandOptionButton = [
										...document.getElementsByClassName('selected-command-option-button')
									]?.at(-1);
									commandOptionButton.scrollIntoView({ block: 'center' });
								}

								if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'Enter') {
									e.preventDefault();

									const commandOptionButton = [
										...document.getElementsByClassName('selected-command-option-button')
									]?.at(-1);

									if (commandOptionButton) {
										commandOptionButton?.click();
									} else {
										document.getElementById('send-message-button')?.click();
									}
								}

								if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'Tab') {
									e.preventDefault();

									const commandOptionButton = [
										...document.getElementsByClassName('selected-command-option-button')
									]?.at(-1);

									commandOptionButton?.click();
								} else if (e.key === 'Tab') {
									const words = findWordIndices(prompt);

									if (words.length > 0) {
										const word = words.at(0);
										const fullPrompt = prompt;

										prompt = prompt.substring(0, word?.endIndex + 1);
										await tick();

										e.target.scrollTop = e.target.scrollHeight;
										prompt = fullPrompt;
										await tick();

										e.preventDefault();
										e.target.setSelectionRange(word?.startIndex, word.endIndex + 1);
									}

									e.target.style.height = '';
									e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
								}

								if (e.key === 'Escape') {
									console.log('Escape');
									atSelectedModel = undefined;
								}
							}}
							rows="1"
							on:input={(e) => {
								e.target.style.height = '';
								e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
								user = null;
							}}
							on:focus={(e) => {
								e.target.style.height = '';
								e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
							}}
							on:paste={(e) => {
								const clipboardData = e.clipboardData || window.clipboardData;

								if (clipboardData && clipboardData.items) {
									for (const item of clipboardData.items) {
										if (item.type.indexOf('image') !== -1) {
											const blob = item.getAsFile();
											const reader = new FileReader();

											reader.onload = function (e) {
												files = [
													...files,
													{
														type: 'image',
														url: `${e.target.result}`
													}
												];
											};

											reader.readAsDataURL(blob);
										}
									}
								}
							}}
						/>

						<div class="self-end mb-2 flex space-x-1 mr-1">
							{#if messages.length == 0 || messages.at(-1).done == true}
								<Tooltip content={$i18n.t('Record voice')}>
									{#if speechRecognitionEnabled}
										<button
											id="voice-input-button"
											class=" text-gray-600 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-gray-850 transition rounded-full p-1.5 mr-0.5 self-center"
											type="button"
											on:click={() => {
												speechRecognitionHandler();
											}}
										>
											{#if isRecording}
												<svg
													class=" w-5 h-5 translate-y-[0.5px]"
													fill="currentColor"
													viewBox="0 0 24 24"
													xmlns="http://www.w3.org/2000/svg"
													><style>
														.spinner_qM83 {
															animation: spinner_8HQG 1.05s infinite;
														}
														.spinner_oXPr {
															animation-delay: 0.1s;
														}
														.spinner_ZTLf {
															animation-delay: 0.2s;
														}
														@keyframes spinner_8HQG {
															0%,
															57.14% {
																animation-timing-function: cubic-bezier(0.33, 0.66, 0.66, 1);
																transform: translate(0);
															}
															28.57% {
																animation-timing-function: cubic-bezier(0.33, 0, 0.66, 0.33);
																transform: translateY(-6px);
															}
															100% {
																transform: translate(0);
															}
														}
													</style><circle class="spinner_qM83" cx="4" cy="12" r="2.5" /><circle
														class="spinner_qM83 spinner_oXPr"
														cx="12"
														cy="12"
														r="2.5"
													/><circle
														class="spinner_qM83 spinner_ZTLf"
														cx="20"
														cy="12"
														r="2.5"
													/></svg
												>
											{:else}
												<svg
													xmlns="http://www.w3.org/2000/svg"
													viewBox="0 0 20 20"
													fill="currentColor"
													class="w-5 h-5 translate-y-[0.5px]"
												>
													<path d="M7 4a3 3 0 016 0v6a3 3 0 11-6 0V4z" />
													<path
														d="M5.5 9.643a.75.75 0 00-1.5 0V10c0 3.06 2.29 5.585 5.25 5.954V17.5h-1.5a.75.75 0 000 1.5h4.5a.75.75 0 000-1.5h-1.5v-1.546A6.001 6.001 0 0016 10v-.357a.75.75 0 00-1.5 0V10a4.5 4.5 0 01-9 0v-.357z"
													/>
												</svg>
											{/if}
										</button>
									{/if}
								</Tooltip>

								<Tooltip content={$i18n.t('Send message')}>
									<button
										id="send-message-button"
										class="{prompt !== ''
											? 'bg-black text-white hover:bg-gray-900 dark:bg-white dark:text-black dark:hover:bg-gray-100 '
											: 'text-white bg-gray-200 dark:text-gray-900 dark:bg-gray-700 disabled'} transition rounded-full p-1.5 self-center"
										type="submit"
										disabled={prompt === ''}
									>
										<svg
											xmlns="http://www.w3.org/2000/svg"
											viewBox="0 0 16 16"
											fill="currentColor"
											class="w-5 h-5"
										>
											<path
												fill-rule="evenodd"
												d="M8 14a.75.75 0 0 1-.75-.75V4.56L4.03 7.78a.75.75 0 0 1-1.06-1.06l4.5-4.5a.75.75 0 0 1 1.06 0l4.5 4.5a.75.75 0 0 1-1.06 1.06L8.75 4.56v8.69A.75.75 0 0 1 8 14Z"
												clip-rule="evenodd"
											/>
										</svg>
									</button>
								</Tooltip>
							{:else}
								<button
									class="bg-white hover:bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-white dark:hover:bg-gray-800 transition rounded-full p-1.5"
									on:click={stopResponse}
								>
									<svg
										xmlns="http://www.w3.org/2000/svg"
										viewBox="0 0 24 24"
										fill="currentColor"
										class="w-5 h-5"
									>
										<path
											fill-rule="evenodd"
											d="M2.25 12c0-5.385 4.365-9.75 9.75-9.75s9.75 4.365 9.75 9.75-4.365 9.75-9.75 9.75S2.25 17.385 2.25 12zm6-2.438c0-.724.588-1.312 1.313-1.312h4.874c.725 0 1.313.588 1.313 1.313v4.874c0 .725-.588 1.313-1.313 1.313H9.564a1.312 1.312 0 01-1.313-1.313V9.564z"
											clip-rule="evenodd"
										/>
									</svg>
								</button>
							{/if}
						</div>
					</div>
				</form>

				<div class="mt-1.5 text-xs text-gray-500 text-center">
					{$i18n.t('LLMs can make mistakes. Verify important information.')}
				</div>
			</div>
		</div>
	</div>
</div>

<style>
	.scrollbar-hidden:active::-webkit-scrollbar-thumb,
	.scrollbar-hidden:focus::-webkit-scrollbar-thumb,
	.scrollbar-hidden:hover::-webkit-scrollbar-thumb {
		visibility: visible;
	}
	.scrollbar-hidden::-webkit-scrollbar-thumb {
		visibility: hidden;
	}
</style>
